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S5 Controle Ativo de Vibrações e Estruturas Inteligentes |
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Title:
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CONTROLE ATIVO DE VIBRAÇÃO USANDO CONTROLADORES BASEADOS EM LÓGICA FUZZY
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Summary :
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ACTIVE CONTROL OF VIBRATION USING CONTROLLERS BASED IN FUZZY LOGIC
ABSTRACT. THE GREAT PROGRESS TRIED BY THE THEORY OF THE CONTROLLERS FUZZY IN THE LAST YEARS HAS BEEN OPENING NEW POSSIBILITIES OF PRACTICAL APPLICATION FOR THESE CONTROLLERS. THIS WORK INVESTIGATES THE POTENTIALITIES OF THE FUZZY CONTROLLERS IN THE CONTROL OF VIBRATIONS IN FLEXIBLE SYSTEMS, A METHODOLOGY OF PROJECT OF ACTIVE DYNAMIC DAMPING OF VIBRATIONS THAT USES MAGNETIC COILS AS ACTUATORS IS PRESENTED. THE NON-LINEAR BEHAVIOR OF THE MAGNETIC ACTUATORS ASSOCIATED TO VARIATIONS OR UNCERTAINTIES IN THE MODEL OF THE PLANT COLLABORATE, IN THESIS, TO THE USE OF THE FUZZY CONTROLLERS. FOR THE VALIDATION OF THE METHODOLOGY, IT WAS BUILT A ONE DEGREE OF FREEDOM VIBRATORY SYSTEM, A MAGNETIC BEARING, A DIGITAL SYSTEM OF CONTROL IMPLEMENTED IN A PC AND A "CURRENT DRIVER". SOME EXPERIMENTAL RESULTS ARE SHOWN AND CONFRONTED WITH THE EXPECTED THEORETICAL RESULTS.
KEY-WORDS: ACTIVE CONTROL, FUZZY LOGIC AND MAGNETIC BEARINGS.
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Author :
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Manhães de Abreu, Gustavo L. Chagas
Ribeiro, José Francisco
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Paper View :
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